Observation information
- date-obs: 2020-09-02
- time-obs: 19:28:48.780200000
- date-end: 2020-09-02
- time-end: 21:30:07.778600000
- obs_id: A09_145T01_9000003848
- exposure: 4187.69932611
- sourceid: Crab
- observer: aarthy
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_145T01_9000003848_26668cztM0_level2.evt
| modeM0/AS1A09_145T01_9000003848_26668cztM0_level2_quad_clean.evt
|
| Size (bytes) | 612,181,440 | 93,648,960 |
| Size | 583.8 MB
| 89.3 MB
|
| Events in quadrant A | 3,616,269 | 612,389 |
| Events in quadrant B | 3,916,642 | 621,262 |
| Events in quadrant C | 3,470,481 | 594,443 |
| Events in quadrant D | 7,071,843 | 529,928 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14954 | 0 |
| B | 0 | 15814 | 0 |
| C | 0 | 14400 | 0 |
| D | 0 | 25649 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 5 | 0 |
| B | 0 | 5 | 0 |
| C | 0 | 5 | 0 |
| D | 0 | 5 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6859 | 90 | 1.312145% |
| B | 6860 | 294 | 4.285714% |
| C | 6860 | 86 | 1.253644% |
| D | 6860 | 1436 | 20.932945% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
| Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
| A | 7279 | 6860 | 29 | 29 | 0.40% | 0.42% |  |
| B | 7280 | 6861 | 154 | 154 | 2.12% | 2.24% |  |
| C | 7280 | 6861 | 4 | 4 | 0.05% | 0.06% |  |
| D | 7280 | 6861 | 1119 | 1119 | 15.37% | 16.31% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
| Pixel properties |
Quadrant properties |
| Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
| A | 0 | 13 | 277793 | 1592.99 | 855 | 838 | 173.9 |
| A | 13 | 170 | 32236 | 180.59 | 855 | 838 | 173.9 |
| A | 13 | 254 | 10639 | 56.37 | 855 | 838 | 173.9 |
| B | 5 | 172 | 568523 | 3541.38 | 833 | 815 | 160.3 |
| B | 0 | 244 | 30478 | 185.04 | 833 | 815 | 160.3 |
| B | 0 | 189 | 19454 | 116.27 | 833 | 815 | 160.3 |
| C | 14 | 238 | 131199 | 666.04 | 821 | 829 | 195.7 |
| C | 15 | 208 | 57921 | 291.67 | 821 | 829 | 195.7 |
| C | 3 | 233 | 48029 | 241.14 | 821 | 829 | 195.7 |
| D | 7 | 80 | 3233632 | 18026.66 | 725 | 704 | 179.3 |
| D | 1 | 52 | 707678 | 3942.05 | 725 | 704 | 179.3 |
| D | 2 | 250 | 267898 | 1489.86 | 725 | 704 | 179.3 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
| Quadrant A |
 |
 |
Quadrant B |
| Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
| Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
| Parameter |
Plot |
| CZT HV Monitor |  |
| D_VDD |  |
| Temperature 1 |  |
| Veto HV Monitor |  |
| Veto LLD |  |
| Alpha Counter |  |
| _CPM_Rate |  |
| CZT Counter |  |
| +2.5 Volts monitor |  |
| +5 Volts monitor |  |
| _ROLL_ROT |  |
| _Roll_DEC |  |
| _Roll_RA |  |
| Veto Counter |  |